– 2 lbs chicken, [0.9 kg], cut into small pieces – Juice of 1 lime – ½ teaspoon oregano (dry, ground) – 1 small red onion, stalks cut into slices – ½ cup chopped celery, (optional) – 1 teaspoon salt, (more may be necessary) – ½ teaspoon mashed garlic – 2 tablespoons vegetable oil – 1 teaspoon sugar (white, granulated) – 2 cup water – 2 green bell, or cubanela (cubanelle) peppers – 4 plum tomato, cut into quarters – ¼ cup pitted green olives, (optional) – 1 cup tomato sauce – 1 bunch cilantro – ¼ teaspoon pepper (freshly-cracked, or ground)